10231421321 has 24 divisors (see below), whose sum is σ = 12534409440. Its totient is φ = 8293380480.

The previous prime is 10231421297. The next prime is 10231421329. The reversal of 10231421321 is 12312413201.

It is not a de Polignac number, because 10231421321 - 2³⁰ = 9157679497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10231421293 and 10231421302.

It is not an unprimeable number, because it can be changed into a prime (10231421329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91811 + ... + 169976.

It is an arithmetic number, because the mean of its divisors is an integer number (522267060).

Almost surely, 2^10231421321 is an apocalyptic number.

10231421321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10231421321 is a deficient number, since it is larger than the sum of its proper divisors (2302988119).

10231421321 is a wasteful number, since it uses less digits than its factorization.

10231421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261845 (or 261834 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10231421321 its reverse (12312413201), we get a palindrome (22543834522).

The spelling of 10231421321 in words is "ten billion, two hundred thirty-one million, four hundred twenty-one thousand, three hundred twenty-one".